Even though many Spanish people celebrate Christmas, the tradition of using stockings to store small gifts and presents originated in Western Europe and is a tradition in America, not Spanish countries. But, it depends so you may want to ask the person if you have someone in mind.
"Los niños españoles" in Spanish translates to "the Spanish children" in English.
Dutch children would hang their shoes by the fireside before stockings. They believed that Sinterklaas (their version of Santa Claus) would fill them with gifts and treats on the eve of St. Nicholas Day.
Dutch children hang up their stockings by the fireplace for Sinterklaas to fill with treats and gifts on the eve of St. Nicholas Day (December 5th). This tradition is similar to hanging stockings for Santa Claus in other parts of the world.
Before stockings, the French used leg coverings called garters or hose. Garters were bands worn around the leg to hold up socks or stockings, while hose were close-fitting garments covering the leg from foot to waist, usually worn by men. The evolution of fashion eventually led to the adoption of stockings as leg coverings in French attire.
It means, 'two offspring,' two children, or 'two sons.'